Distinguishing Bombus impatiens, bimaculatus, & griseocollis

This is the second part of the ID-a-thon bee presentation. Re-done in google slides, looks a lot better, will update the others in the series in this format.

https://docs.google.com/presentation/d/e/2PACX-1vT2UqSdUlvPwqhp_XhDGNxlKUnnVxvyBkK_zKEIs7yTIK00zuhQ--voesFaIpBXK_ae_034RWSkdQE0/pub?start=false&loop=false&delayms=60000

由使用者 neylon neylon2021年05月20日 01:51 所貼文

評論

Thank you! This level of detail is so helpful.

發佈由 sarahwilson1 約 3 年 前

Thanks for checking it out.
I just noticed that google drive screwed up the layout I had, I'll try to fix that today.

發佈由 neylon 約 3 年 前

This is fantastic! And very helpful. I need to look for the first post now. Thank you so much for sharing this information. Cheers chd

發佈由 chdonati 約 3 年 前

Even though as a west coaster I'm likely to be dealing with different species, I am still finding these documents very valuable in demonstrating the types of fieldmarks to look for and examples of how to identify them on images. I find the comparative images extremely useful in this regard. Thanks so much for taking the time to create such an informative series of documents!

發佈由 wildnettle 約 3 年 前

I just re-did the the entry in google slides, it looks a lot better then it did.

發佈由 neylon 大約 3 年 前

Cheers!

發佈由 chdonati 大約 3 年 前

Looks fantastic!

發佈由 wildnettle 大約 3 年 前

Thank you , It's now linked to my reference list and will be guiding me in the coming season.

發佈由 louc33 超過 2 年 前

Wickedly, totally awesome guide. But do you know how many photos I have to go back through now?

發佈由 contrarianvulgarian 超過 2 年 前

Joel, thank you for the great guides you have put together on Bombus spp. They are very informative and helpful to those of use learning how to identify bees in the field.

發佈由 psking 超過 2 年 前

Excellent guide! Thanks so much for sharing this.

發佈由 scoutingforplants 超過 2 年 前

Excellent! Now I know what details to try to capture when photographing Bombus to get a positive ID.

發佈由 mnerrie 超過 2 年 前

Excellent tutorial! Thanks for taking the time to help others learn the differences among these bumblebees!

發佈由 zitserm 超過 2 年 前

I'm so glad this resource exists! All my field guide uses to distinguish B. impatiens and B. bimaculatus are the spots on T2. But then you IDed some of my bee observations as bimaculatus without me even having a decent view of the abdomen!
I have a question though. On the slide titled "Scutum (cont.) B griseocollis", the pictures all have large black spots on their scutum, but you state before that that they only have a small black spot. Are those pictures of impatiens or bimaculatus instead?
Thanks!

發佈由 spellecchias 超過 2 年 前

@spellecchias The left and middle pictures on that page are griseocollis males which can look a little different from the females. I should probably note that on the page. Thanks

發佈由 neylon 超過 2 年 前

Good to know, thanks!

發佈由 spellecchias 超過 2 年 前

Superb reference information and supporting images. Thanks so much!!

發佈由 deanthompson 9 個月 前

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